Pneumatic tire.



W. H. SNYDER.

PNEUMATIC TIRE.

APPLIUATION FILED 112023.1901.

921 174, Patented May 11, 1909.

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J WJLS) WILLIAM H. SNYDER, OF KENTON, OHIO.

. PNEUMATIC TIRE.

Specification of Letters Patent.

Application filed December 28, 1907.

Patented May 1 1, 1909.

Serial No. 407,813.

To all whom it may concern:

Be it known that I, WILLIAM H. SNYDER, a citizen of the *United States, residing at Kenton, in the county of Hardin and State of Ohio, have invented a new and'useful Improvement in Pneumatic Tires, of which the following is a specification.

This invention relates to an automobile tire and means for locking the same securely upon the rim.

The object of the invention is a tire which will be very durable, and which can be easily repaired, thus adding to the life of the tire. It is common to employ canvas and rubber in such tires, the canvas bein placed on in layers, and it is the usua custom to either cement the layers together or to build the tire up of alternate layers of canvas and rubber. In both of these common constructions the canvas layers become more or less so arated during the summer as the travel 0 the wheels over hot paveme nts and roads heats the cement or rubber placed between the canvas layers, thus permitting the canvas to pull apart.

My invention consists of the novel features of construction hereinafter described, pointed out in the claims and shown in the accompanying drawings in which Figure 1 is a side elevation of a ortion of a wheel showing my tire applied thereto. Fig. 2 is an enlarged transverse section throu h the tire and the wheel rim. Fig. 3 is a p an view of the canvas ortion of the tire. Fig. 4 is a detail sectionalview through a portion of the canvas tire. Fig. 5 is a detail sectional view showing a clencher in unlocking position.

In constructing the tire the same is a plied to a rim carrying a ring 1 which is un ercut as shown at 2 this undercut portion forming u on each side of the ring an annular groove.

e tire is built up of canvas layers 3 and in constructing the tire 2 layers are stitched together and the stitches are run in a diagonal serpentine line. A third layer of canvas is then placed in position and is stitched in the same manner through the first two. A fourth layer is then applied and is stitched through the other three, and this operation is continued until the tire is of the required weight and thickness. In placing the strips of canvas in position they are cut doub e width and are placed over suitable longitudinally extending strips 4 which'may be also of astiif canvas. The two firstlayers stitched shaped in cross section.

together will therefore be of one piece and the th rd and fourth layers would also be integral with each other, the third layer resting upon the outer face of one of the first two, and the fourth layer resting upon the outer face of the remaining layer of the two first, the stri of canvas from which the third and fourth aylers are formed folding over and iuclosing t e selvage of the first two layers. This operation is repeated and in this manner a very stilf canvas tire is built up and one which it will be difficult to puncture. In case of a puncture a reinforcing canvas stri can be sewed over the uncture upon botii the inside and outside 0 the tire. After the canvas tire has been completed a rubber fas terfing is vulcanized to it. Then the tire. hasbecome worn the last layer of canvas can be removed and a new layer stitched on, re-

vulcanized and the tire again made )ractically as good as new. It will be 0 vious that the strip 4 previously referred to produces upon the tire edges inwardl 1 extending annular ribs 6, also formed 0 built up layers of canvas and these ribs fit into the grooves 2 formed in the ring member 1. his also forms a slight V-shapod recess along the outer face of the tire on each side into which are fitted clam in rings 7 wedgelo liold these rin s in place bolts 8 are passed transverse y through the folly and serve as pivot pins upon which turn steel spring clenchers 9 off set to curve around the rim and the free end portions of these clenchers arc sprung inwardly, as is most clearly shown at 9 in Fig. 5. Nuts 10 working on the bolts 8 force the clenchers tightly against the felly sides bringing the spring end portions of the clenchers into binding engagement with the rings 7 and as the nuts are tightened up and the clenchers forced closer to the folly they will partly straighten out, .thus giving a strong constant spring pressure against the ring 7 and holding t c tire very firmly in place so that all creeping is avoided.

To remove the tire it is only necessary to loosen the nuts and swing the cleric iers downwardly into the position shown in F ig. 5, and the rings 7 can then be removedaftcr which the tire canbe lifted off without difficulty.

Havin thus fully described my invention, what I cFaiin as new and desire to secure by Letters Patent is:--

I l. A tire of the kind described consisting of layers 01 canvas stitched to ether, all of the stitches passing through the first two la ers, and the additional layers being" stitched to the two first layers and to each preceding layer.

2. A canvas tire formed of a strip of canvas folded upon itself and stitched diagonally, a third layer stitched to the two first layers and in Contact with the face of one of them, and a fourth layer stitched to the other three layers, in contact with the other of the first two layers, and integral with the third layer, the third and fourth. layers covering and binding, the edges of the two first.

3. An automobile tire formed ofa plurality of canvas layers laid in contact with each other and stitched with a diagonal serpentine stitching said layers being added successively, and each being stitched to all of the preceding layers, and the rubber facing vulcanized. to the outer face of the'top layer. 4. An automobile tire formed of layers of eonvas successively stitched together, longitudinal strips embedded in the tire edges, said strips forming inwardly projecting ribs. an undercut rim rm said ribs fitting in the grooves formed by the undereuttin clamping rings and pivoted spring clenc iers 0ltlried by the wheel telly and bearing u )Ull said rings as and for the purpose set forth \VILLIAM ll. 15X i'l 1E}; Yitnesses:

H. E. PEARCE, HUGH L. RUNKLE 

